dt-bindings: rockchip-thermal: Support the RK3228/RK3399 SoCs compatible

This patchset attempts to new compatible for thermal founding
on RK3228/RK3399 SoCs.
Signed-off-by: NCaesar Wang <wxt@rock-chips.com>
Acked-by: NRob Herring <robh@kernel.org>
Signed-off-by: NEduardo Valentin <edubezval@gmail.com>

Documentation/devicetree/bindings/thermal/rockchip-thermal.txt

@@ -2,8 +2,10 @@
 
 Required properties:
 - compatible : should be "rockchip,<name>-tsadc"
+   "rockchip,rk3228-tsadc": found on RK3228 SoCs
    "rockchip,rk3288-tsadc": found on RK3288 SoCs
    "rockchip,rk3368-tsadc": found on RK3368 SoCs
+   "rockchip,rk3399-tsadc": found on RK3399 SoCs
 - reg : physical base address of the controller and length of memory mapped
 	region.
 - interrupts : The interrupt number to the cpu. The interrupt specifier format